Oil-cup.



A. HIRSH.

OIL CUP.

APmrcMxoN FILED MM2?, |914.

vPafenred Dec. 21, 31915.v

Llamas.

ARTHUR HIRSH, CHICAGO, ILLINOIS.

ont-CUP.

Specication of Letters latent.

Patented Dec. 21, 1915.

application inea may 27, 1914. serial No. 841,193.

tothe accompanying drawings,forming a part thereof.

The' purpose of this invention is to provide an vimproved form of closedoil cup of the character which is designed to hold the `oil by means ofan absorbent material satu` rated therewith and adapted to be compressedto discharge the oil to the bearing to which the cup is attache Itconsists in the elements and features of construction shown anddescribed, as indicated in the claims.

In thedrawingsz-Figure l isa side elevation of an oil Icup embodyingthis invention. Fig.- 2 is an axial section of the device showing thetwo members separated. Fig. 3 is a top plan view ofthe lower mem ber orbody of the device with the cap or cover removed. Fig. 4 is a section atthe line {lf-4 on Fig. l. y

The oil cup shown in the drawings is designed to be made of steelstampings, and comprises two members in. addition to a spring memberforming pintles by which the two principal members are engaged..

The outer and upper member, 1, isl in the form of a cylindrical caphavin formed in its cylindricall wall a spiral bea 2", forminginteriorly a spiral groove or channel, 2,

said groove and channel extending somewhat more than one hundred eightydegrees around the cap,Y and a corresponding 'spiral series of interiorindentations, 3, forming exterior bosses, 3a, which series of bosses andindentations commences at a point diametrically opposite the lower endof the spiral groove and extending around the opposite lhalf of the capfrom' that occupied by the groove overlaps the latter to the extent thatsaid spiral groove and said spiralseries of indentations each exceed onehundred eighty degrees. At the lower edge of the cap, immediately belowthe lowest of the indentations andthe end of thespiral groove, there areformed slight notches, 4,. 4, to constitute approaches to the groove andindentations, respectively. rlhe lower member of the device is a cup, 5,which is formed with an of Which the fol-.

-in by way of the notches,

hexagonal shoulder, 5a, and a threaded terminal, 5b, by which it isadapted to be screwed into the bearing to be oiled. The

upper portion of the cup is cylindrical,

1zgdaped to fit snugly within the cap mem- 6 is a pintle' bar extendingdiametrically with respect to the device and mounted in the cup member,5, with its ends protruding at diametrically opposite points therefromnear the u pper edge thereof, so that said ends constitute pintles, 6a,adapted to-' en gage, respectively, the groove, 2, and the indentations,3. This pintle bar is bowed be tween its ends, the b'ow, `7, beingadapted to droop into thel 'cup member, 5, as seen in Fig. 2, and thepintle bar is thereby adapted to be sprung into place in the cup member,and its ends are held yieldingly protruded therefrom for engagement withthe groove and indentions of the cap member.

It will bel understoodv that the cavity inclosed by the cup and cap isdesigned to be filled with oil-saturated waste, which will be compressedfor squeezing the oil out of it into the bearing by telescoping the twomembers, l and 5, more or'less. A suitable quantity of saturated wastebeing supplied to substantially fill the entire-cavity when the membersare telescoped to the least ex-f tent which will effect the 'engagementof the pintles in the lower endofthe groove, 2, and the lowest of theindentations, 3, the pintles are thus engaged by starting them 4, 4, andpressing the members together until the pintles snap into the groove-and indentation, respectively. Further engagement for compressing the'oil-saturated waste will be made by rotating the cup, in which actionthe spiral grooves engaged by one pintle steers the cap after the mannerof a screw thread, causing the opposite pintle to follow the properspiral course for' engaging the indentations successively, 'thel ends ofvthe pintles being rounded so that they can be forced out of theindentations by turning the cap, will nevertheless engage theindentations sufficiently to substantially lock the cap securely at allpositions to` which it may be screwed. By this means, it is possible tomake the connection of the cup and cap as secure against unscrewing ascould be done by a fine low-pitched screw thread. ln

practice, the distance from indentation to indentation in the spiralseries of indentations, 3, may be substantially equal to one full turnof a thread of suliciently low pitch to be safe, so that the cap can beadjusted by steps equivalent to one complete turn of such a screwthreadand be secure at all stages of the adjustment, the entire movement forcompressing the mechanism amounting to only half a turn as againstten ortwelve turns which would be required if the screw threading action wereemployed.

An important advantage of the device is that it can be manufactured. atvery much less cost than would be involved in cutting the screw thread.

I claim 1. An oil'cup comprising a cup member and a closure thereforadapted to telescope with each other, the exterior member havinginteriorly at one side a spiral groove and at the other side acorrespondinglyspiral row of indentations, the interior member havingpintles adapted for engaging respectively the groove and theindentation. n

2. An oil cup comprising a cup member `and a closure therefor adapted totelescope with each other, the exterior member having interiorly aty oneside a spiral groove and at the other side a correspondingly.

. spiral row of indentations; spring-connected pintles mounted in theinner of said members and 4protruding yieldingly for engagementrespectively with the spiral groove and the indentations.

3. An oil cup comprising a cup member and aclosure therefor adapted totelescopewith the spiral groove and the indentations of the exteriormember. 4. An 011 cup comprising two members adapted to telescope witheach other, one

of said members having in the cylindrical surface contiguous to theother member at one side a spiral groove, and at the opposite side acorrespondingly spiral row of indentations, the other member havinglpintles for engaging, respectively, the groove and the indentatlons,one of the pintles being elastically yielding for engaging and beingdisengagedl from the indentations.

In testimony whereof I have hereunto set my hand, at Chicago, Illinois,this 15th day of May, 1914.

ARTHUR HIRSH. Witnesses:

A* CHAs. S. BURTON,

'EDNA M. MACINTOSH.

